Hey there!
NoOne has released XMAPEDIT! This new tool supersedes old rusty MAPEDIT as it has a lot of quality life improvements, lots of bugs fixed and more. Click the link and find out!
http://cruo.bloodgame.ru/xmapedit/
Here's a video by Spill:
Also huge thanks to NUKE.YKT as without him, XMAPEDIT wouldn't be a thing!